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Wetzlar, Germany

Ernst Leitz G.m.b.h.

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USPTO Granted Patents = 31

Trademarks = 1

Forward Citations = 519

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35 inventors (with patents filed for the assignee):

Ludwig Leitz (6 out of 6 patents)

Heinz Broemer (4 out of 18 patents)

Werner H Holle (4 out of 5 patents)

4. Knut Heitmann (3 out of 13 patents)

5. Hans-Herbert Kaes (3 out of 3 patents)

6. Walter Bletz (3 out of 4 patents)

7. Norbert Meinert (2 out of 3 patents)

8. Hans-Dieter Jacoby (2 out of 2 patents)

9. Helmuth Frenk (2 out of 2 patents)

10. Rudolf Bohme (1 out of 1 patent)

11. Klaus Heinecke (1 out of 1 patent)

12. Fromund Hock (1 out of 1 patent)

13. Emanuel Pfeil (1 out of 1 patent)

14. Hermann Eisenkopf (1 out of 1 patent)

15. Knut Heitman (1 out of 1 patent)

Core Competencies:

Optical Systems

Light Modulation

Auto Focus

Biocompatible Materials

Photographic Cameras

Measurement Apparatus

Fluorophosphate Glass

Digital Timers

Particle Aggregation

Mechanical Aberrations

Slide Projectors

Voltage Storage

31 patents: Sort by Forward Citations

1. 4135819 - Apparatus for measuring the aggregation rate of particles (1979-01-23),

2. 4131597 - Bioactive composite material process of producing and method of using (1978-12-26),

3. 4091281 - Light modulation system (1978-05-23),

4. 4087153 - Binoculars with double hinge bridge and resilient biasing (1978-05-02),

5. 4080611 - Apparatus for storing a voltage analogous to an exposure parameter in (1978-03-21),

6. 4071772 - Apparatus for measurement of mechanical aberrations affecting (1978-01-31),

7. 4071297 - Method and apparatus for photoelectrically determining the position of (1978-01-31),

8. 4056760 - Method of driving a two coordinate oscillator and circuit arrangement (1977-11-01),

9. 4048492 - Method and apparatus for automatic focusing an optical system with a (1977-09-13),

10. 4047189 - Electronic storage, indicator and exposure time control device for (1977-09-06),

11. 4047022 - Auto focus with spatial filtering and pairwise interrogation of (1977-09-06),

12. 4040846 - Optical fluorophosphate glass and process of making same (1977-08-09),

13. 4037238 - Still pocket camera (1977-07-19),

14. 4015275 - Digital timer for a photographic camera shutter (1977-03-29),

15. D243007 - Photographic camera (1977-01-11),

Company Overview

Ernst Leitz G.m.b.h., based in Wetzlar, Germany, is renowned for its expertise in optical and imaging technologies. The company specializes in the development and manufacturing of high-precision optical instruments, including cameras, microscopes, and binoculars. With a strong emphasis on innovation, Ernst Leitz G.m.b.h. integrates advanced engineering and design to enhance visual experiences across various applications, from professional photography to scientific research. Its commitment to quality and precision has established it as a leader in the optical industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

31 Patents

#7 in Wetzlar

#1,566 in Germany

#21,301 in the World

Wetzlar, Germany

Ernst Leitz G.m.b.h.

Forward Citations = 519

35 inventors:

Ludwig Leitz (6 out of 6 patents)

Heinz Broemer (4 out of 18 patents)

Werner H Holle (4 out of 5 patents)

4. Knut Heitmann (3 out of 13 patents)

5. Hans-Herbert Kaes (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ernst Leitz G.m.b.h.. Retrieved from https://idiyas.com/company/ernst-leitz

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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